libcblog.nl - robtex.com
libcblog.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 132.229.92.66🇳🇱 SURFNET-NL132.229.0.0/16 RUL-NL | ||||||
| NS | arachne.leidenuniv.nl ⭐ | ||||||
| A | 172.22.101.10UNSPECIFIED160.0.0.0/3 | ||||||
| NS | ns1.surfnet.nl | ||||||
| A | 2001:610:1:800a:192:87:106:101🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns1.surfnet.nl | ||||||
| A | 192.87.106.101🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV | ||||||
| PTR | ns1.surfnet.nl | ||||||
| NS | ns2.surfnet.nl | ||||||
| A | 2001:610:3:200a:192:87:36:2🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns2.surfnet.nl | ||||||
| A | 192.87.36.2🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV | ||||||
| PTR | ns2.surfnet.nl | ||||||
| NS | ns3.surfnet.nl | ||||||
| A | 2001:610:0:800c:195:169:124:71🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns3.surfnet.nl | ||||||
| A | 195.169.124.71🇳🇱 SURFNET-NL195.169.0.0/16 SURFnet CIDR Block VI | ||||||
| TXT | HARICA-f7YWIvDfz3sLYF62zgr | ||||||
| SOA | arachne.leidenuniv.nlpostmaster@leidenuniv.nl serial=1983 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-13 14:00:01 +0000 (EPOCH 1776088801) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-13 #27 | ||||||
Subdomains
www.libcblog.nl |
Same first word
libcblog.nl |
DNS History
8 records (5 active, 3 former)
●NSarachne.leidenuniv.nl2026-03-28 → 2026-04-13 · 3 obs
● 2026-03-28 12:27:12
● 2026-04-13 14:44:58
○NSindigo.leidenuniv.nl2018-05-10 → 2018-05-10 · 3 obs
○ 2026-03-28 12:27:12
○ 2026-04-13 14:44:58
●NSns1.surfnet.nl2026-03-28 → 2026-04-13 · 3 obs
● 2026-03-28 12:27:12
● 2026-04-13 14:44:58
●NSns2.surfnet.nl2026-03-28 → 2026-04-13 · 3 obs
● 2026-03-28 12:27:12
● 2026-04-13 14:44:58
●NSns3.surfnet.nl2026-03-28 → 2026-04-13 · 3 obs
● 2026-03-28 12:27:12
● 2026-04-13 14:44:58
○NSviolet.leidenuniv.nl2018-05-10 → 2018-05-10 · 3 obs
○ 2026-03-28 12:27:12
○ 2026-04-13 14:44:58
○A132.229.13.352018-05-10 → 2018-05-10 · 3 obs
○ 2026-03-28 12:27:12
○ 2026-04-13 14:44:58
●A132.229.92.662026-03-28 → 2026-04-13 · 3 obs
● 2026-03-28 12:27:12
● 2026-04-13 14:44:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| libcblog.nl | ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl | 6 records |
✅ Authoritative Response
Server:192.87.106.101
NS records: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 398ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 132.229.92.66 |
| NS | 3 | ns1.surfnet.nl, ns3.surfnet.nl... |
| TXT | 1 | HARICA-f7YWIvDfz3sLYF62zgr |
| SOA | 1 | arachne.leidenuniv.nl postmaster.leidenu |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.surfnet.nl, ns1.surfnet.nl, ns2.surfnet.nl...)
Analysis
Hierarchy
libcblog.nl is a parent of www.libcblog.nl.
IP Addresses
libcblog.nl points to a single IP number: 132.229.92.66.
Other host names, for instance leidensecurityandglobalaffairs.nl, leidenmadtrics.nl, leidenanthropologyblog.nl, leidenarthistoryblog.nl and p-issc-019035.infra.leidenuniv.nl share IP numbers with libcblog.nl.
Name Servers
libcblog.nl is delegated to four name servers: arachne.leidenuniv.nl, ns1.surfnet.nl, ns2.surfnet.nl and ns3.surfnet.nl.
libcblog.nl at least partially shares name servers with other domains, for instance cursus.surfnet.nl, scpdata.nl, koncon.nl, 43.169.195.in-addr.arpa and 127.169.195.in-addr.arpa.
these name servers are commonly used with ns1.zurich.surf.net, ns6.eur.nl and ns01.rocmondriaan.nl.
Host names with two IPs:
ns1.surfnet.nl points to: 2001:610:1:800a:192:87:106:101 and 192.87.106.101.
ns2.surfnet.nl points to: 2001:610:3:200a:192:87:36:2 and 192.87.36.2.
ns3.surfnet.nl points to: 2001:610:0:800c:195:169:124:71 and 195.169.124.71.
Host names with one IP:
arachne.leidenuniv.nl points to: 172.22.101.10.